Administrator Guide

Auto Save on Crash or Rollover
Exception information for MASTER or standby units is stored in the ash:/TRACE_LOG_DIR directory. This directory contains les
that save trace information when there has been a task crash or timeout.
• On a MASTER unit, you can reach the TRACE_LOG_DIR les by FTP or by using the show file command from the ash://
TRACE_LOG_DIR directory.
• On a Standby unit, you can reach the TRACE_LOG_DIR les only by using the show file command from the ash://
TRACE_LOG_DIR directory.
NOTE: Non-management member units do not support this functionality.
Example of the dir flash: Command
Dell#dir flash://TRACE_LOG_DIR
Directory of flash:/TRACE_LOG_DIR
1 drwx 4096 Jan 17 2011 15:02:16 +00:00 .
2 drwx 4096 Jan 01 1980 00:00:00 +00:00 ..
3 -rwx 100583 Feb 11 2011 20:41:36 +00:00 failure_trace0_RPM0_CP
flash: 2143281152 bytes total (2069291008 bytes free)
Using the Show Hardware Commands
The show hardware command tree consists of commands used with the Aggregator switch.
These commands display information from a hardware sub-component and from hardware-based feature tables.
NOTE: Use the show hardware commands only under the guidance of the Dell Technical Assistance Center.
• View internal interface status of the stack-unit CPU port which connects to the external management interface.
EXEC Privilege mode
show hardware stack-unit {0-5} cpu management statistics
• View driver-level statistics for the data-plane port on the CPU for the specied stack-unit.
EXEC Privilege mode
show hardware stack-unit {0-5} cpu data-plane statistics
This view provides insight into the packet types entering the CPU to see whether CPU-bound trac is internal (IPC trac) or
network control trac, which the CPU must process.
• View the modular packet buers details per stack unit and the mode of allocation.
EXEC Privilege mode
show hardware stack-unit {0-5} buffer total-buffer
• View the modular packet buers details per unit and the mode of allocation.
EXEC Privilege mode
show hardware stack-unit {0-5} buffer unit {0-1} total-buffer
• View the forwarding plane statistics containing the packet buer usage per port per stack unit.
EXEC Privilege mode
show hardware stack-unit {0-5} buffer unit {0-1} port {1-64 | all} buffer-info
• View the forwarding plane statistics containing the packet buer statistics per COS per port.
EXEC Privilege mode
show hardware stack-unit {0-5} buffer unit {0-1} port {1-64} queue {0-14 | all} buffer-
info
Debugging and Diagnostics
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